[Zoe] 

Realizing that a plastic knife probably won't be very helpful, she sets it aside in favor of a broom from the janitor's closet. When she pushes the door open, slowly, the hallway is, for the moment, clear of zombies. She quietly slips to the corner of the hall and looks around; there are three zombies close by. This may be her only chance to get back to the others, so she makes a split second decision and lumbers into the hallway, walking disjointedly in an effort to mimic the zombies. When she gets to the end of the hall, she sprints for the doors to the media center. 

((I couldn't tell what room we're in at this point. Gym, media center...?))